| Patents for E21B 10 - Drill bits (19,464) |
|---|
| 01/07/2006 | CA2511708A1 Multiple inserts of different geometry in a single row of a bit |
| 01/05/2006 | WO2006001819A1 Anchoring drill bit, system and method of anchoring |
| 01/05/2006 | US20060000647 Hollow auger head assembly |
| 01/05/2006 | US20060000646 Down-the hole hammer |
| 01/05/2006 | CA2586221A1 Anchoring drill bit, system and method of anchoring |
| 01/04/2006 | EP1438483B1 System for lining a section of a wellbore |
| 01/04/2006 | CN1717528A Well reamer |
| 01/04/2006 | CN1717501A Composite material |
| 01/04/2006 | CN1234956C Self drilling roll bolt |
| 01/03/2006 | US6981496 Point chisel |
| 12/29/2005 | WO2005124094A1 Enlarging and stabilising tool for a borehole |
| 12/29/2005 | WO2005124093A1 An auto lubrication device for hydraulic breaker |
| 12/29/2005 | US20050284660 Drill bits with reduced exposure of cutters |
| 12/29/2005 | DE102004028371A1 Schlagende Werkzeugmaschine mit Spülkopf Beating machine tool with swivel |
| 12/29/2005 | DE102004028099A1 Bohrer Drill |
| 12/29/2005 | DE102004028098A1 Bohrer Drill |
| 12/28/2005 | CN2748627Y Outside diameter adjustable bit for drilling pile hole |
| 12/28/2005 | CN1714225A Tool insert |
| 12/28/2005 | CN1714224A Composite tool insert |
| 12/28/2005 | CN1233921C Drilling rod capable of placing exploration explosive into downhole |
| 12/28/2005 | CN1233902C Concrete piles |
| 12/27/2005 | US6978849 Hole-boring method and system for making cast-in-situ piles |
| 12/22/2005 | WO2005121494A1 Device for a rock drilling machine |
| 12/22/2005 | US20050281411 Binaural horizontal perspective display |
| 12/22/2005 | US20050279534 Stepped polycrystalline diamond compact insert |
| 12/22/2005 | US20050279533 Apparatus and method for securing diamond segment to rotating tool |
| 12/22/2005 | US20050279531 Lateral boring system |
| 12/21/2005 | EP1606489A1 Tool insert |
| 12/21/2005 | EP1606488A1 Secondary cutting element for drill bit |
| 12/21/2005 | EP1068423B1 Apparatus and method for mitigating wear in downhole tools |
| 12/21/2005 | CN1711404A Improved rotary roller reamer |
| 12/20/2005 | US6976549 Drilling tool |
| 12/20/2005 | US6976548 Self relieving seal |
| 12/20/2005 | US6976547 Actuator underreamer |
| 12/20/2005 | CA2257934C Cutter element adapted to withstand tensile stress |
| 12/15/2005 | WO2005119376A2 Horizontal perspective display |
| 12/15/2005 | WO2005118998A1 Horizontal perspective simulator |
| 12/15/2005 | US20050275915 Multi-plane horizontal perspective display |
| 12/15/2005 | US20050275914 Binaural horizontal perspective hands-on simulator |
| 12/15/2005 | US20050275913 Binaural horizontal perspective hands-on simulator |
| 12/15/2005 | US20050274551 Drill |
| 12/15/2005 | US20050274550 Multi-part energizer for mechanical seal assembly |
| 12/15/2005 | US20050274549 Metal seal with impact-absorbing ring |
| 12/15/2005 | US20050274547 Drilling systems and methods utilizing independently deployable multiple tubular strings |
| 12/15/2005 | US20050274546 Reaming and stabilization tool and method for its use in a borehole |
| 12/15/2005 | US20050274545 Pressure Relief nozzle |
| 12/15/2005 | US20050274534 Percussive power tool with flushing head |
| 12/15/2005 | CA2509319A1 Multi-part energizer for mechanical seal assembly |
| 12/14/2005 | EP1604793A1 Drill |
| 12/14/2005 | EP1604763A2 Percussive machine-tool with flushing head |
| 12/14/2005 | EP1604762A1 Drill |
| 12/14/2005 | CN1707065A Drill |
| 12/14/2005 | CN1707064A Drill |
| 12/13/2005 | US6973978 Drilling tool having an expandable bladder and method for using same |
| 12/13/2005 | CA2349774C Flat profile cutting structure for roller cone drill bits |
| 12/13/2005 | CA2340547C Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance |
| 12/13/2005 | CA2257883C Rolling cone bit having gage and nestled gage cutter elements having enhancements in materials and geometry to optimize borehole corner cutting duty |
| 12/13/2005 | CA2188099C Nozzle retention system for rock bits |
| 12/09/2005 | CA2508635A1 Pressure relief nozzles |
| 12/08/2005 | WO2005116484A2 Chain drive system |
| 12/08/2005 | US20050273301 Techniques for modeling/simulating, designing optimizing, and displaying hybrid drill bits |
| 12/08/2005 | US20050269139 Shaped cutter surface |
| 12/08/2005 | US20050269132 Laser spectroscopy/chromatography drill bit and methods |
| 12/07/2005 | EP1602478A2 Semiconductive polycrystalline diamond |
| 12/07/2005 | CN2744822Y Safety locking device for hole-enlarging tool for drilling |
| 12/07/2005 | CN2744821Y Rolling bearing rock bit |
| 12/06/2005 | US6971459 Stabilizing system and methods for a drill bit |
| 12/06/2005 | US6971458 Drill bit |
| 12/06/2005 | CA2401347C Cutting matrix and method of applying the same |
| 12/06/2005 | CA2358618C Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization |
| 12/06/2005 | CA2348049C Toughness optimized insert for rock and hammer bits |
| 12/06/2005 | CA2312151C Rock bit cone retention system |
| 12/06/2005 | CA2101816C Tool insert |
| 12/01/2005 | WO2005114542A2 Methods for evaluating and improving drilling operations |
| 12/01/2005 | WO2005113926A2 Wear indication apparatus and method |
| 12/01/2005 | US20050264858 Multi-plane horizontal perspective display |
| 12/01/2005 | US20050264857 Binaural horizontal perspective display |
| 12/01/2005 | US20050264559 Multi-plane horizontal perspective hands-on simulator |
| 12/01/2005 | US20050264558 Multi-plane horizontal perspective hands-on simulator |
| 12/01/2005 | US20050263328 Thermally stable diamond bonded materials and compacts |
| 12/01/2005 | US20050263327 Compact for earth boring bit with asymmetrical flanks and shoulders |
| 12/01/2005 | US20050263325 Chain drive system |
| 12/01/2005 | US20050262774 Low cobalt carbide polycrystalline diamond compacts, methods for forming the same, and bit bodies incorporating the same |
| 12/01/2005 | CA2567656A1 Methods for evaluating and improving drilling operations |
| 12/01/2005 | CA2566480A1 Wear indication apparatus and method |
| 11/30/2005 | EP1507954B1 A downhole tool for use in a wellbore |
| 11/30/2005 | EP1454031A4 An improved transmission sleeve |
| 11/30/2005 | EP1235971B1 Reamer shoe |
| 11/30/2005 | CN2743526Y Top deviating wedge shaped teeth |
| 11/30/2005 | CN1702289A Pneumatic percussion pike with a steering mechanism |
| 11/30/2005 | CN1702288A Mining three roller bit with an antirunback |
| 11/29/2005 | US6968912 Drill blades for drill bit |
| 11/24/2005 | US20050257963 Self-Aligning Insert for Drill Bits |
| 11/23/2005 | EP1395730B1 Expandable drilling tool |
| 11/23/2005 | CN2742114Y Screw drilling rig special for loess plateau |
| 11/22/2005 | CA2260512C Improved cutting matrix |
| 11/22/2005 | CA2220679C Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty |
| 11/22/2005 | CA2206169C A bit retention device for a bit and chuck assembly of a down-the-hole percussive drill |
| 11/17/2005 | US20050252694 Rotary roller reamer |
| 11/17/2005 | US20050252692 Roller bit with a journal pin offset from the central axis thereof |